[python] release new version (#3278)

* update regeneration

* Update dependencies

* Update dependencies (2025-12-10 05:30:15)

* Regenerate for typespec-python (2025-12-10 05:35:29)

* bump version

* update

---------

Co-authored-by: AutoPrFromHttpClientPython <AutoPrFromHttpClientPython>

Author: msyyc

.chronus/changes/auto-iscai-msft-python-backcompatTspPadding-2025-10-18-17-23-22.md

@@ -1,5 +1,19 @@
 # Release
 
+## 6.44.0
+
+### Features
+
+- [#3246](https://github.com/Azure/autorest.python/pull/3246) Support SDK users defined customized serialization/deserialization function for external models
+
+### Bug Fixes
+
+- [#3264](https://github.com/Azure/autorest.python/pull/3264) Keep original client name for backcompat reasons when the name is only padded for tsp generations
+- [#3271](https://github.com/Azure/autorest.python/pull/3271) Fix for optional properties in flatten model to keep compatibility
+- [#3276](https://github.com/Azure/autorest.python/pull/3276) Fix multipart when files part is optional
+- [#3274](https://github.com/Azure/autorest.python/pull/3274) Fix serialization name for multipart
+
+
 ## 6.43.0
 
 ### Features

.chronus/changes/auto-microsoft-external-type-python-2025-9-20-14-28-41.md

@@ -1,6 +1,6 @@
 {
   "name": "@autorest/python",
-  "version": "6.43.0",
+  "version": "6.44.0",
   "description": "The Python extension for generators in AutoRest.",
   "scripts": {
     "start": "node ./scripts/run-python3.js ./scripts/start.py",
@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/Azure/autorest.python/blob/main/README.md",
   "dependencies": {
-    "@typespec/http-client-python": "https://artprodcus3.artifacts.visualstudio.com/A0fb41ef4-5012-48a9-bf39-4ee3de03ee35/29ec6040-b234-4e31-b139-33dc4287b756/_apis/artifact/cGlwZWxpbmVhcnRpZmFjdDovL2F6dXJlLXNkay9wcm9qZWN0SWQvMjllYzYwNDAtYjIzNC00ZTMxLWIxMzktMzNkYzQyODdiNzU2L2J1aWxkSWQvNTY0NjEzMi9hcnRpZmFjdE5hbWUvYnVpbGRfYXJ0aWZhY3RzX3B5dGhvbg2/content?format=file&subPath=%2Fpackages%2Ftypespec-http-client-python-0.21.0.tgz",
+    "@typespec/http-client-python": "~0.22.0",
     "@autorest/system-requirements": "~1.0.2",
     "fs-extra": "~11.2.0",
     "tsx": "~4.19.1"
@@ -47,4 +47,4 @@
     "requirements.txt",
     "generator/"
   ]
-}
+}

.chronus/changes/auto-microsoft-python-fix-optional-properties-2025-11-3-16-16-35.md

@@ -1,5 +1,19 @@
 # Release
 
+## 0.55.0
+
+### Features
+
+- [#3246](https://github.com/Azure/autorest.python/pull/3246) Support SDK users defined customized serialization/deserialization function for external models
+
+### Bug Fixes
+
+- [#3264](https://github.com/Azure/autorest.python/pull/3264) Keep original client name for backcompat reasons when the name is only padded for tsp generations
+- [#3271](https://github.com/Azure/autorest.python/pull/3271) Fix for optional properties in flatten model to keep compatibility
+- [#3276](https://github.com/Azure/autorest.python/pull/3276) Fix multipart when files part is optional
+- [#3274](https://github.com/Azure/autorest.python/pull/3274) Fix serialization name for multipart
+
+
 ## 0.54.0
 
 ### Features